diff --git a/src/KSPACE/fft3d.cpp b/src/KSPACE/fft3d.cpp
index 88e25ca3a8..638dd46f8e 100644
--- a/src/KSPACE/fft3d.cpp
+++ b/src/KSPACE/fft3d.cpp
@@ -840,7 +840,6 @@ void bifactor(int n, int *factor1, int *factor2)
 {
   int n1,n2,facmax;
 
-  //facmax = static_cast<int> (sqrt((double) n));
   facmax = static_cast<int> (sqrt(n));
 
   for (n1 = facmax; n1 > 0; n1--) {
diff --git a/src/REAX/fix_reax_bonds.cpp b/src/REAX/fix_reax_bonds.cpp
index 1798ffc32e..66ebb41463 100644
--- a/src/REAX/fix_reax_bonds.cpp
+++ b/src/REAX/fix_reax_bonds.cpp
@@ -122,7 +122,7 @@ void FixReaxBonds::OutputReaxBonds(bigint ntimestep, FILE *fp)
  
   if (me == 0) {
     char fstr[32];
-    sprintf(fstr,"# Timestep %d \n",BIGINT_FORMAT);
+    sprintf(fstr,"# Timestep %s \n",BIGINT_FORMAT);
     fprintf(fp,fstr,ntimestep);
     fprintf(fp,"# \n");
     fprintf(fp,"# Number of particles %d \n",nparticles_tot);